Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Malacanthidae
(Tilefishes) > Latilinae
Etymology: Branchiostegus: Greek, brangchia = gills + Greek, stego = roof, to cover (Ref. 45335); saitoi: A new species of Branchiostegus was first caught off Batangas Laiya, Philippines in 2009, photographed and eaten. Two years passed before two more specimens were caught by J. Saito, an amateur angler from Japan in April, 2011. Without J. Saito’s considerable efforts and interest, this species would have remained unknown. The new species is herein named in his honor (Ref. 89848).
Environment / Climate / Range
Marine; benthopelagic. Tropical, preferred ?; 14°N - 13°N, 121°E - 122°E
Pacific Ocean: Philippines. Known only from Bayangas, Laiya at 210-220 m depth, it is possibly endemic; but as it is very rare, and probably inhabits burrows as do other tilefishes, B. saitoimay ultimately be found at other localities (Ref. 89848).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.9 cm SL male/unsexed; (Ref. 89848)
Morphology | Morphometrics
This species can easily be distinguished from its congeners by the following combination of characters: a great body depth (28-29% SL; other species usually 27% SL) longer head length (30-31% SL; other species usually 28%), head profile oblique, about 130 degree angle (other species usually 95-130 degrees); head depth (26-27% SL; other species usually 26% SL); eyes high on head (interorbital width 31-34% HL); small orbital diameter 24–25% HL, only B. sawakinensis and B. albus with small orbital diameters, 23-24% HL) long predorsal length (35% SL; other species usually 30–32% SL, rarely 33-34% SL), deep body (28-29% SL; other species usually 24-27%, rarely, only in B. japonicus and B. semifasciatus, 28-29% SL); wide body (14-15% SL; other species usually 11-13% SL); number of first arch gill rakers low 18 + 1 rudimentary, most other species 18–24, modally 19-22 (Ref. 89848).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dooley, J.K. and Y. Iwatsuki, 2012. A new species of deepwater tilefish (Percoidea: Branchiostegidae) from the Philippines, with a brief discussion of the status of tilefish systematics. Zootaxa 3249:31-38. (Ref. 89848)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (44 of 100) .